INSTALLATION
WARNING: Playing loud music in anY Before drilling or cutting holes, use aPOWER CONNECTIONSSpeaker Connections
automobile can hinder your ability to hearutility knife to remove unwanted fabricThe GTO amplifiers are capable of Refer to the application guides on the
traffic and permanently damage your or vinyl to keep material from snaggingdelivering extremely high power levels,pages that follow. Speaker connections
hearing. We recommend listening at low orin a drill bit.and require a heavy-duty and reliable should be made using a minimum of
moderate levels while driving your car. JBLY When routing cables, keep input-signalconnection to the vehicleOs electrical system16-gauge wire.
accepts no liability for hearing loss, bodilycables away from power cables andin order to perform optimally. See Figure 1
injury or property damage resulting fromspeaker wires.for connection location. Please adhere toHigh-Level Input Connections
the use or misuse of this product.the following instructions carefully: The GTO75.2, GTO75.4 and GTO755.6
YWhen making connections, make
amplifiers are equipped with speaker-level
certain they are secure and properly
IMPORTANT: To get the best Ground Connectioninputs that allow you to add an amplifier
insulated.
¨
performance from your JBL Grand TouringConnect the amplifierOs Ground (GND) to head units that do not have RCA line
Y If the amplifierOs fuse must be replaced,
Series amplifiers, we strongly recommendterminal to a solid point on the vehicleOsoutputs. The speaker outputs for the
use only the same type and rating as
that installation be entrusted to a qualified metal chassis, as close to the amplifier source unit should be connected to the
that of the original. Do not substitute
professional. Although these instructionsas possible. Refer to the chart below to amplifier using the supplied connector
another kind.
explain how to install GTO amplifiers in adetermine minimum wire-gauge size. Scrape(square four-wire plug). Remember to
general sense, they do not show specificaway any paint from this location; use a star-check for proper polarity. The GTO301.1,
CHOOSING A LOCATION
installation methods that may be requiredtype lock washer to secure the connection.GTO601.1 and GTO1201.1 amplifiers are
for your particular vehicle. If you do notAND MOUNTING THEnot equipped with high-level inputs.
have the necessary tools or experience, AMPLIFIERPower Connection
Choose a mounting location in the trunk
do not attempt the installation yourself.Connect a wire (see chart at right forNOTE: When using the high-level inputs,
Instead, please ask your authorized JBLor cargo area where the amplifier will notappropriate gauge) directly to the vehicleOsthe AUX outputs can be used to pass a
car audio dealer about professional be damaged by shifting cargo. Amplifierpositive battery terminal, and install anline-level signal to another amplifier.
cooling is essential for proper amplifier
installation.appropriate fuse holder within 18" of the
operation. If the amplifier is to be installedbattery terminal. Do not install the fuse atWire Gauge Chart
INSTALLATION in an enclosed space, make sure there isthis time. Route the wire to the amplifierOsAmplifierMaximumMinimum
sufficient air circulation for the amplifier
WARNINGS AND TIPSlocation, and connect it to the amplifierOsModelCurrent DrawWire Gauge
Y Always wear protective eyewear whento cool itself.Positive (+12V) terminal. Be sure to useGTO75.234A #8 AWG
using tools.appropriate grommets whenever routingGTO75.485A #8 AWG
When mounting the amplifier under a
YTurn off the audio system and other wires through the firewall or other sheetGTO755.687A #8 AWG
seat, ensure that it is clear of all moving
electrical devices before you start.metal. Failure to adequately protect theGTO301.140A #8 AWG
seat parts and does not affect the seat
Disconnect the (�) negative lead frompositive wire from potential damage mayGTO601.169A #6 AWG
adjustments. Mount the amplifier so it
your vehicleOs battery.result in a vehicle fire. When you are done GTO1201.1115A #4 AWG
is not damaged by the feet of backseat routing and connecting this wire, you mayThese recommendations assume 7' � 10'
Y Check clearances on both sides of
passengers. Make sure that the amplifierinstall the fuse at the battery.wire runs. If your installation differs mark-
a planned mounting surface before
is mounted securely using nuts and boltsedly, you will need to adjust the wire
drilling any holes or installing any
or the supplied mounting screws.Remote Connectiongauge accordingly.
screws. Remember that the screws
Connect the amplifierOs Remote (REM)
can extend behind the surface.
Mount the amplifier so that it remains IMPORTANT NOTE: If you are planning
terminal to the source unitOs Remote Turn-
Y At the installation sites, locate and
dry � never mount an amplifier outside On lead using a minimum of 18-gauge wire.to use optional neon tubes, install them
make a note of all fuel lines, hydraulic
the vehicle or in the engine compartment.before making any electrical connections
brake lines, vacuum lines and electrical
NOTE: When using the speaker levelto the amplifier (refer toOInstalling Neon
wiring. Use extreme caution when cut-
inputs, connect the remote (REM) terminalTubes� on page 6).
ting or drilling in and around these areas.
to the source unit. If your source unit does
not have a remote turn-on connection,
connect the amplifierOs (REM) terminal to
Figure 1. Terminal connection end plate.the vehicleOs accessory circuit.
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